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DOOM 3 Hints
So where's this card thingy I need?
1 of 4: The last surviving member of Bravo Team has it. You may have noticed him hiding from Counselor Swann and Jack Campbell in the cut scene you got when you fixed the reactor rod.
2 of 4: After you go through the hazard doors in Chamber 1 Upper, head on through Control 2, Plasma Control, Maintenance 2, and Maintenance 3.
3 of 4: In Maintenance 3, find the door to the Garage Exit and enter it.
4 of 4: The marine will appear and give you the transmission card in a cut scene (and will then be killed by a wretched wraith in typical you're-not-needed-anymore-so-we'll-kill-you-off style).
